The Gatefeeder GF-100 RFID Controlled Automated Pet Feeder handles supervised feedings for you and feeds the right meal to the right cat. The perfect complement to your daily routine, it uses a Gatefeeder developed, collar mounted Smart ID (featuring RFID Sensor Technology) trigger the electro-magnetic lock to open creating a patented, recessed entrance. This enables one designated cat access to food within a closed space – while preventing other pets or neighborhood animals from eating the food. It guarantees all food – canned, kibble, a special diet, or medication – goes straight to the right cat, while simultaneously maintaining a sanitary environment by keeping mess and odors contained. The Gatefeeder is ideal for those with unpredictable schedules, elderly people or those with disabilities, offering your cat feeding on demand. If you have multiple cats, regulating food consumption by giving each pet their own feeder will prevent overeating and bloating, helping them maintain optimum pet weight and health. The Gatefeeder is battery operated, and requires the use of 6 AA batteries, sold separately. Read more.